Bed-motion in printing-machines.



R. MIEHLB & R. P. MIEHLE, JR.

BED MOTION IN PRINTING MACHINES.

v APPLIOATION FILED MAY 4, 1911. 1,1 1 1,604. I Patented Sept. 22, 1914.

3 SHBETS-SHEET 1.

WETNESSES AT ORNEY- R. MIEHLE & R. F. MIBHLE, J12.

BED MOTION IN PRINTING MACHINES.

APPLIOATION FILED MAY 4, 1911.

1,1 1 1,604. Patented Sept. 22, 1914.

3 SHEETSSKBET 2.

F/G. 5A.

WITNESSES 27 5 INVENYO HS ATTO RNE Y.

R. MIEHLE 93. 1. MIEHLE, JR.

BED MOTION IN PRINTING MACHINES.

APPLIOATION FILED X11! 4, 1911. 1,1 1 1 ,604, Patented Sept. 22, 1914 3 SHEETS-SHEET 3.

FIG. 6.

l/WEN TOR A TTORNEY R/[Z'HZ 5:858. 111-7144 4 HIE s ri re ns re rnn'r orr cn.

*acnz'hnr MIZEHLE AND ROBERT F. MIEHL E, an, or CHICAGO, ILLIHMS. assmnons To KOONTI'NENTAL & COMMERCIAL Tans-r & savn os BANK, TRUSTEE, CHICAGO,

ILLINOIS.

- BED-MOTIGN IN PRINTING-MACHINES.

I specification of Letters Patent. Paiteute i Sept, 22, 1914;

To all whom it may concern 'Be it known that. We, ROBERT MIEHLE and Bonner F. Mini-me. Jr., citizens of the United States, and residents of Chicago, in the county of Cook and State of Illinois, have invented a certain new antl useful l1nprominent in Bed-Motions "'1 Printingii'lathe same size as the iatter.

the following is a speciand is an improvement on the bed motion' for printing machine for which Letters Patent-of the United States ho. 322,309 were issued to Robert Miehle on the 14th day of Jiiy, in the year 1885. In the above mentioned patent, the drive gearing is so arranged that the intermediate driving gear which meshes with the cyiinder-gearis of it is desirable tohave, this intermediate gear of a large proportion so as to make a more durable gear mesh vdirect between the bed motion shaft drive gear and the type or form bed. "In'the device shown in said Patent No.' 322,309, the said intermediate gear is cured to a shaft which has another gear at its inner and under the type bed, meshing with a gear secured t. the bed motion drive gear shaft. up(:n,\v"hich the bed motion gear also is secured. This arrangement of driw ing the bed motion shaft nee tales that the .pitch diameters of the gears under the bed be reduced in order to place them in that posit-ion. hen so reduced, the moving of "the bed motion gear l? o and out of mesh with the racks cause. the acceleration and retardation of the b d motion re versing crank on said gear to he a unormally increased on mount of the reduced pitch diameters of the gears: which ohjectionahle. This reduction of the nitcb diameters also places a. greater strain upon the teeth, 1111'! k ing'them Wear out. more rapidly, thus cansing lost motion between the gears and an undesirable back lash of the reversal crank in the slot at the time it brings the type bed to a stop and starts it in the opposite direction.

The invention has for its objects: first, to m'oride means for driving the bed motion shaft direct from the outside of the type bed or press frame,-the driving gears being Application fli d May 4,1911. Serial Ho. 625,050.

of normal pit-ch diameters and always in mesh; second. to arrange the bed motion drive gears so that the acceleration and retardation of the crank (caused by the .u and down motion of the bed motion'fr'a'mei isapplied at the ends of the stroke which will benefit the speed of the machine and. make possible the printing of .a somewhatbed, the latter gear meshing with atransmission gear which has a position on the side of the gear secured to the bed motion driving gear shaft. This arrangement imparts an accelerated motion to th ycrank at the end of the printing stroke and a retarded movement to the crank at the end of the non-printing stroke described more fully hereafter. However, in said Patent No. 790,574, the drivin' gearing under vthe bed is also of a. reducer pitch diameter and'has all of the objectionable features pointed out heretofore in Patent No. 322,309. In our new arrangement, We secure the acceleration at the endof the printing stroke and the retardation at the end of the non-printing stroke, at the same time retaining the full pitch diameters of the drive gearing which the above mentioned patents do not, as well as arranging th cylinder drive gear favorably with respect to the bed motion drive gear so that they occupy a compact space outside of the press frame thus allow ing easy access to all parts of the machine.

Vrc attain these objects by the mechanism illustrated in the accompanying drawings,

and i showdetailed operation of mecha 105 nisni for retarding, stopping and accelerating the movement of the type bed.

Similar numbers of reference indicate like parts in the several risws.

is employed at either end in juxtaposition i inder shaft. thus imparting motion to the Referring to the drawings for a detailed description of the construction, l indicates l a rack-frame fixedly secured to the under l side of the reciprocating type lied, rack-frame is provided with upper and 5 lower racks 3 and 4, with which tl e \li'l\' ing gear 5 alternately engages. The town i here shown is similar to the one disclosed in United States Patent No. 322,30 lrcferred to,' 'in which a straight shoulder 6 The. i. correspond with holes 34 on gear 12 outer end of the bed motion shaft 9, is the l pinion 10 of the same size as the drive pinion '5 saidpinion 10 being in mesh with the internal gear.1l. The internal gear 11 is bolted to the intermediate gear 12 which is drivenby the small pinion on the main drive shaft 13. The intermediate cylinder gear 12 is also bolted to the intermediate I gear 12 and is indirect mesh with the cylindergear 1 t which is secured to the cylcylinder 15. J-Iowever, .we do not limit ourselves to this construction as the cylinder gear may be in direct mesh with the inter- .mediate driving gear 12, thus eliminating the intermediite cylinder gear 12. Also, ring gear-11. may he formed intcgrally with said intermediate gear 12' in which ca. the cylinder gear .v-.-'o\.|ld mesh directly with the teeth'on said integral gear (as shown in Fig. 5) in which. the outer periphery of the ring gear is provided with teeth for driving.

This arrangement also gives a broader driving surface. The cylinder is journaled in theside frame 2-3. This arrangem nt of gears has several advantages. liai-in intermediate cylinder gear if? bolted to intermediate gear 12' but not engaging i; main drive pinion 13, on shaft 15% ensh us tovary the pitch diameter of i.i.\.-er1nei.li ate cylinder gear 12, thus giving wider his itnde in the position of the shaft 1.1; which the intermediate gear 32 is mounts Said intermediate gear 19 may he rr'lt from intermediate .gear l2 and tnrneu i loosely on the hub of said central member 1 to tef-st the travel of ill-1: cvlimlr-r with. the form. When it is desirable to print a longer form in a four roller in using three of the roller it is in:

just the evlindei so that the have their proper relaivc f longer form. To accomplish this adjust i went. iiiterniwiiate cylinder gear I? is reused from the central member which is hen turned until the original bolt holes in (as own in l l) and bolted in this position. shown in Fig. l 35 indicates form inking inllcrs; 36 indicates beginning of. form when ice of form is inkedby all four rollers;

4 indicates beginning of form when longer form is inked by tl'iree rollers only; 38 indicates thedgrippers on surface of c-ylin'- der. Y

The detailed construction of gears 11, 12 and t2 is shown in Fig. 5, in which intermediate gear 12' is the'central member fixed to the shaft 24-. The internal gear 11 is a 1 ring gear bolted to said intermediate gear 1-2 The intermediate cylinder gear 12 is is y mounted about the hub of the intermediate gear 12"and bolt-ed to it as shown.

he circumference of the impression cylinder 1.5 equal to the pitch of the internal gear 11 and each makes two completerevolotions to one complete backward and forward stroke of the type bed, but We do not limit ourselves to such relative dimension. As stated, driving pinion 5 and pinion 10 {respectively at inner and'outer endsof the bed motion shaft) are of the same size and each make three complete revolutions to one complete backward stroke of the type bed. These pinions 5 and .0 are rotated in one direction only.

The main drive shaft l is Supported bv the upright bracket-s30 and the shaft -24 is tin; dc frame it evident that by having the intermediate gear for driving the bed motion shaft utside the t ipe bed or press frame, larger i eouently more durable gears can be 7 and vthout reducii'ig: the pitch diamthus attaining better con (if (he ty i with the reversing nk. Th advantage of using an internal :r {or eonnnunicating motion to the bed ion. shaft lies in thci fact that more of p teeth are in mesh all times andthat th iraw away more siowly, thus n1 iintion, and nisequently wear a and adding to the li to of the gears. and lowering of the bed In0 S? to engage the drive pinion 5 .i racks 5 and 4t alternately is aceom: niisheil or means ofl-the bed motion rocker rann' in the following manner: The bed uni-.1 .n rocker 'ifll'li z' consists of '5 hearing and forward ction. around the intermediate gear to on the line YY (which cuts through the center of the bed motion shaft when 1t is in position about midway between the upper and lower racks, and the center of the shaft 24) as shown in dotted construction 21 and 22 in Fig. 1. That is, the bed motion shaft is on a line that shifts or oscillates and is radial with respect to the shaft 24. In Figs.

3.;and 4, the detailed construction of the bedmotion rocker frame is shown. The extension 20 andill are formed by fittu'a' a shaft into the-bed-motion rocker frame, and by slidi g this shaft out the rockeuframe can be :asily removed from the press frame.

Motion is applied to the bed motion run as follows: Meshing with the intermediate gear .12 is the pinion '25 which is secured to the short shaft At one end of said shaft 32 is secured a smaller gear 26 which meshes with the pinion 27 secured to the short shaft 33. At one end of said shaft is secured the small pinion 28 which meshes with the cam shaft gear The cam shaft gear 29' isisecured to the cam shaft 31, thus driving the bed motion cam 19. 'As the cam 19 rotates, the stud 18 slides in cam groove 19, lifting and lowering the arm 17, thus lifting and lowering the bed motion shaft 5) which carrieswith it the pinions 5 and 10. the

former meshing with top and bottom racks 3 and 4 as'stated above.

As stated, the second object of this invention is to'arrange the bed motion drive gear so that the acceleration and retardation (caused by the up and down motion of the bed motion shaft) is applied at the ends of the stroke which will benefitthe speed of he machine and make possible the printing of a somewhat longer form. Near the end of the non-printing stroke, as shown in F 0, when the reversing crank or wristpio 8 enters the slot formed by the shoulder f3 and 7' and the pinion leaves the lower rack a, the working of the stud 18 over the portion f of the cam groove 19' (substantially onesixth of a revolution of the cam Tl9-the said cfimaking one complete revolution to three domplete revolutions of the driving gear 5) causes the bed m'otion frame to lift the bed motion shaft 9 which, of course, carries up with it pinions 5 and 10, bringing the reversing crank 8 to the position shown in Fig. 7 This lifting of the bed motion shaft interferes with the uniformity of the rotary velocity of pinions 5 and 10, and the reversing crank 8, imparting to them turning effort in the opposite direction to that inwhich they would normally turn, thus momentarily checking their rotary velocity which aids to slow down the movement of the type bed 2.

Near thc'end of the printing stroke, as shown in Fig. 8, when the reversing crank or wrist-pin 8 enters the'slot formed by the shoulders 6 and 7 and the pinion 5 leaves the upper rack 3, the working of'the stud 18 over the portion h of the cam groove 19 (substantially onesixth of a revolution of said cam 19) causes the bed motion frame to lower the bed mot-ion shaft 9 which, of course, brings down with it pinions 5 and 10, bringing the reversing crank 8 to the position shown in Fig. 9. This lowering of the "e d motion shaft also interferes with the uniformity of the rotary velocity of pinions 5 and 10 and reversing crank 8, imparting to them turning effort in the same direction as that in which they would normally turn, thus'accelcrating their rotary velocity which accelerates the movement of the type bed 2.

The cam action occurring at the time it does, just when the type bed is about to slow up because of the reversing crank 8 entering the slot as described, causes this acceleration to drive the type bed a little farther at uniform speed making it possible to print a somewhat longer form than if the said ac- 9 celeration had not been obtained. The pinions 5 and 10 and the shaft upon which they are mounted together constitute a form of gear element, such gear element including the two separated pinions 5 and 10 that are mechanically fixed with respect to each other, the gear parts 5 and 10 being separated merely for structural purposes, and we therefore, do not limit ourselves to a gear element in which the parts 5 and 10 are distinct.

e do not limit'ourselves to the specific construction herein shown and described for imparting the'to and fro motion to the type bed by the bed motion dialing pinion and reversing crank as we are aware that many changes may-be made in practising our invention by those who are skilled in the art without departing from the scope of our invention as expressed in the claims.

Having thus fully described our invention, what we claim and desire to secure by Letters Patent is:

1. In a printing press the combinatio with a form bed; of means for reciprocating said bed includi ng a shaft; devices operated by said shaft for moving the bed to and fro; a movable support carrying said 1 shaft, means for shifting said support; a gear on the outer end of said shaft; and an internal 4 gear meshing with the gear on the outer end of the said vshaft; said gear being so positionedrelative to said internal gear that the shifting movements of the gear relative to the internal gear cause an accelerated move- "and fro; a pivoted support carrying said shaft; n ans for shifting said support; a' gear on the outer end of said shaft; and an &

ment of the bed at one end of its stroke, and a retarding movement of the bed at the other end of the stroke.

2. In a printing press, the combination with a form bed; of means for reciprocating said bed including a gear clement; means operated by said element'for moving the bed to-and fro; a movable support carrying said gear element; means for shifting said support. to cause the gear element to move the bedin either direction; and an internal gear meshing with said gear element, said gear element being so positioned relative to said internal gear that the shifting movements of the gear element relative td-the internal gear cause an accelerated movement of the bed at the end of the printing stroke, and a retard ng movement of the bed at the end.

of the nonprinting stroke O a I l -n- ,a print-mg press, the combination with n? form bed; means fOrreciprocut:

ing said bed, including ashaft and-d rees operated, by said shaft'for mo in the bed to and fro; a pivoted'supp ort gsaid shaft; means for shifting. sand 1p ort'; a

gear out-he outer end'of said, shaft; and am internal gear meshing with the gearon the outer end of said shaft, the fulcrum otthe sa d support being positioned on ahuepass ing approximately through the axes of said? g 4. In a. printing press, the combination with a form bed; of means for reciprocating said bed including a shaft and devices op erated bysa-idshaft for moving the bed to with a form bed; of means for reciprocating said bed, including a shaft and de' iees perated by said sha ft'for moving the bed to.

and fro, a pivoted support carrying said shaft; means for shifting said support; a gear on the outer end of said shaft; and an internal gear meshing with the gear on the outer end of saidshuft, the fulcrum of the said support being positioned on: a line passing approximately through the axes of said gears; said. gear being so positioned-relative to said internal gear that the shifting move ments of the gear relative to the internal gear cause an. accelerated movement of the bed at the end of the printing stroke.v and a retarding movement of the bed at the end'of the non-printing stroke; i 6. ln a printing press, the com with a. form bed; of means for recipro said bed including a shaft and devices o erated by said shaft for moving the bed to and fro; a pivoted Support carrymg said the pitch diameter of said intdrnal gear.

shaft; means for shifting said support; a g .11 on the outer end of said shaft, and an internal gear meshing with the gear on the end of the shaft, the fulcrumof the said support being positioned substantially in line with the axes of said internal gear; said gear being so positioned relative to said internal gear that the shiftingmovements of the gear relative to the internal. gear, cause an accelerated movement of the bed at the end of the printing stroke, and a'retard-I ing movement of the bed at the end of the non-printing stroke.

7. In a printing press, the combination 1 tlr a form bed,-of means for. reciprocating said bed including a shaft extending from a point beneath to a point outside of said bed, devices operated by said shaft for movingthe bed to andfro, an oscillating frame car ryin'g said shafhaneans for oscillating said mine to cause reverses movement of thebed, a gear on the outer end of said shaft, and an, internal gear meshing with the'gear on the end Of the shaft, the"fulorunnof tlie'said oscillating frame heing-positio 'd inside'of '8. In a printing press, the combination with -aformabed, Ineansjfor reciprocating said formbe viircluiding a-shaftextendingfrom a pointunderneath the to point at one side-thera fya'gear carried byfsaid shaft, spacedfraeks {carried by said bed: and located one above and. the otherbeIoivsaid gear, 'an oseillating' frame for supporting said shaft, moansjfor oscillating said ira'me, wherebysaid gearis caused to engage first one rack and then the other a gear on the outer end of saidshaft, aninterhal gearat one side of said bed andimshi ng ayl ththe 7 gear on the outer end 'ofisa-idshafethe' axis of said oscillating frame being substantially in line with the axis of said internal gear.

9. In a' printing pressthe combine a form bed, and'n'ieansflfor recipr t1ng sr-id bed inclii'clim a shaft extendm f a point underneath-the bedtoa p lo thereofl devices carri d by theignner"" end of'said'shaft for moving said bedto" and fro, a. gear on the'outer'end of said shaft at one side of said bed, as internal gear at om side of said bednzeshing and imparting a continuous rotary, nienttothe gear: on the outer end} shaft," said internal gear ,ha ving gea on its'outerf periphery; a dri\- in,. l? 0n meshing wit the gear'teeth-on the outer id internal near, and-a 07L an. 173th adirag to a point outside of: said 136' iH'H'l, a seeend gear mounted n the end of said shaft, an internal gear at one side of mid bed meshing with a gear on the outer end of said shaft the outer periphery of suit! internal gear being provided with gear :e 1b. a supporting member to which said fintii'nzxl QHll' is seem-ed, sand supporting member ha ting teeth in line with the gear i/fiill on the enter periphery of the internal gg enii E1. in :1 printing press, the combination with the form bed i 1;; bed including a 211k with said gear s and .i i r.

gear, devices c0- for moving the a shaft supporting said gear of means for reciproeatl a second gear on the outer end of said shaft, an internal gear at one side of the bed meshing with said gear on the end of the shaft, the outer periphery of said internal gear being provided with gear teeth, a central i supporting member to which said internal 1 gear is bolted, a third ear bolted to said 1 central supporting mem er, and"'rotatably i adjustable with respect to said central member.

i ROBERT MIEHLE. ROBERT F. MIEHLE, JR- I \Vitnesses: 1

PAUL E. HARTUNG, M. PICKEL. 

